baber/WOPTO huggingface dataset:
Patent GB-137485-A (GB)
Title: Improvements in valve mechanism for internal combustion engines
IPC: F01L7/02
Filed: 1919-06-27
Abstract: 137,485. Tutton, T. B. June 27,1919. Valves.-A rotary cylindrical valve of the kind having a central exhaust chamber 1 and an annular inlet chamber 2 is arranged above the cylinder heads and extends beyond them at each end. Exhaust connexions 8 are provided at each end of the valve and the inlet connexion 11 at an intermediate point.
Patent GB-264388-A (GB)
Title: Improvements in means of securing a pulley, collar, eccentric, gear-wheel or the like on a shaft or similar cylindrical body
IPC: F16D1/08
Filed: 1926-06-28
Abstract: 264,388. Barbaix, C. June 28, 1926. Securing pulleys, collars, eccentrics, gearwheels, &c. on shafts.-Removable warp beams of looms and other articles are secured upon shafts or similar cylindrical bodies by the use of three or more shaft-gripping blocks 10 with slots 7 engaging the edges of recesses 3 on the web 1 of the pulley. The blocks are adjustably tightened upon the shaft &c. by screws engaging tapped holes 6 in the blocks and bearing against abutments 5 in the web, the recesses 3 having enlargements 4 to permit of manipulation of the screws. Flat plates engaging recesses 8 in the tops of the blocks extend into the enlargements 4 to prevent escape of the blocks when they are released from the shaft &c. Preferablv the blocks 10 are curved to a smaller radius than the shaft &c. they engage.
Patent GB-881813-A (GB)
Title: Improvements in and relating to processes of hydrating granular alkaline-earth metaloxides
IPC: C01F5/16
Filed: 1959-05-12
Abstract: <PICT:0881813/III/1> Granular alkaline earth oxides are hydrated by contacting the oxides with a gaseous medium containing water vapour but not saturated therewith, the temperature being maintained homogenous throughout the reacting mass, and controlling the reaction temperature and the concentration of water vapour to promote the formation of hydroxides at a rate such that the oxides are converted to hydroxides without disintegration of the crystal structure of the oxides, so that the granulation of the starting material is preserved.  A bed of the granular oxides may be fluidized by gas (e.g. air) containing water vapour.  In examples calcium oxide and calcined dolomite are hydrated in the apparatus shown in Fig. 1.  The material P is fluidized in a tube I by air containing water vapour obtained by passing air through water in a vessel F heated by a water bath.  The tube I and pipe C are also heated in a water bath. Temperatures are observed by thermometers t1 and t2.  It is found that the oxides are hydrated in several stages and at different temperatures.
Patent GB-218826-A (GB)
Title: Improvements in or relating to impedance bonds for use in railway signalling systems
IPC: B61L1/18
Filed: 1923-06-23
Abstract: 218,826. Automatic Telephone Manufacturing Co., Ltd., Roseby, P. N., and Hudd, A. E. June 23, 1923. Inductances.-An impedance bond for use in railway signalling systems has a core 1 consisting of a number of straight rods or strips of Swedish iron or like magnetic material. Two lengths of stranded copper cable 3 are wound side by side in a single layer over the core, which may be first wound with oiled linen. The cable is surrounded only by sufficient insulation to bind the strands together for example, a binding of ordinary insulating tape. 30 turns of 37/12 S. W. G. cable may be used. The bond may be embedded in concrete 4 preferably reinforced, so as to form a rectangular block adapted to fit between the two rails. The bond is secured to the rails or to the sleepers by V-bolts. The ends of the windings are led out through holes 6. One end of each winding is connected to a rail the other ends being connected together and to the corresponding point of the next impedance bond.
Patent GB-386532-A (GB)
Title: Improvements relating to the control of a motor in leonard connection
IPC: H02P7/34
Filed: 1932-06-10
Abstract: 386,532. Field control of D.C. motors,; varying E.M.F. AKT.-GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. June 10, 1932, No. 16417. Convention date, June 12, 1931. [Class 38 (iii).] A control device, in Leonard connection for a self-cooled direct current motor the load of which increases more than directly proportionally with its speed, is so arranged that with a simultaneous decrease in the generator voltage and in the motor speed, the motor field is weakened by regulator devices, and vice versa, in order to avoid excessive heating losses in the motor field at low speeds and thus obviate artificial cooling under these conditions. As shown in Fig. 1, the field windings c, g of the generator a and motor b respectively are connected to the mains f and each include a field regulator d or h. Both regulators d, hare operated simultaneously by a hand-wheel k and chain drive i so that the fields are strengthened or weakened simultaneously. Fig. 2 shows an arrangement whereby the motor b may be driven in either direction. The field c of the generator a is connected up in series with two reversing regulators m while a similar regulator o is connected in series with the field g of the propelling motor b, the ends of each of the resistances in the regulator in this case being connected together. The three regulators are operated simultaneously by a chain drive p and hand-wheel k. The arrangement described is suitable for driving ships' propellers, pumps, blowers, and fans.
Patent GB-1260929-A (GB)
Title: A method and an assembly or sheets for producing documents for example engineering drawings
IPC: G06K19/00
Filed: 1969-03-28
Abstract: 1,260,929. Engineering drawings. ETUDES TECHNIQUES DE CONSTRUCTIONS A FONTAINEBLEAU. 28 March, 1969 [29 March, 1968], No. 16468/69. Heading B6X. A civil engineering drawing is produced by programming a computer to produce a sheet C, Fig. 3, on which is printed an array of data including (a) registering marks a1, a<1>1 for registration with overlaid, transparent schematic drawing portions H, Fig. 1, representing an upper beam portion and B, Fig. 2, representing a lower beam portion, (b) dimensional data appearing on sheet C at locations i<11>, which are in register with dimension indicating graphic symbols i, i<3>, on drawing portions H, B and (c) drawing portion identifying and selecting platen, e.g. TYPE H45/B33. The complete drawing (D, Fig. 4) is produced by selecting drawing portions H45, Fig. 1, and B33, Fig. 3, and overlaying them over the sheet C to produce the drawing D. The drawing portions H, B which are transparent may be replaced by transparent masks which are copied photographically on to the sheet C which has a photo-sensitive layer.
Patent GB-506612-A (GB)
Title: Improvements in and methods of making decorative sheet material
IPC: D21H25/00
Filed: 1938-06-02
Abstract: 506,612. Ornamenting crÛpe paper. DENNISON-VICTOR CO., Ltd. June 2, 1938, No. 16495. Convention date, July 12, 1937. [Class 93] [Also in Group VIII] Decorative sheet material having a surface finish giving variegated effects resembling, for instance, moirÚ fabrics or metal cloth, is made by embossing crÛpe paper and then applying a mass of preferably colourless transparent coating-material containing finely divided highly light-reflective particles, the coating-material being so distributed as to leave on the embossed surface a thin continuous coating of variable thickness dependent on the variations in the sheet produced by embossing. A paper web S, after passing over a crÛpeing roller 2 is embossed by corrugating &c. rollers 6, a coating-composition is applied from a trough 9 the walls of which act as scrapers whereby the composition is scraped off the high parts of the web and settles in the low parts, the material is then dried and is finally passed through apparatus 18 for stretching the material transversely so as to break the coating and expose parts of the original web. Alternatively, the excess may be removed by a spreader bar, rollers or an air blast. The coating- composition may comprise casein, starch, pyroxylin or other cellulose-derivative lacquers, varnish, shellac, or synthetic resins, and the particles may be bronze, gold or silver powders, powdered mica, fish scales or powdered transparent cellulose paper.
Patent GB-181718-A (GB)
Title: Improvements in dismountable bicycles
IPC: B62K15/00
Filed: 1922-06-15
Abstract: 181,718. Schwitzguebel, A., (Assigneeof Sengissen, C. J.). June 20, 1921, [Convention date]. Collapsable cycles.-The frame, handle-bar, and saddle tubes are detachably connected together by means of a front fastening or socket member 1, a rear fastening-member 2, and a lower fasten. ing-member 6 forming the pedal bracket, these fastening-members comprising split sleeves in which the tubes are clamped by means of bolts passing through lugs 7. To facilitate manufacture, the fastening members 1, 2 are of identical form, as are also the inclined frame tubes 9, 10, and the three forks 3, 4, 5, the front fork 3 being afterwards bent to the required curvature. The wheels, fastening-members, and forks are preferably of cast aluminium, and the frame &c. tubes of duralumin. When the bicycle is for the use of small children, the pedals and chain may be omitted, and the propulsion effected by the child's feet bearing on the ground.
Patent GB-428255-A (GB)
Title: A device for the regulation of the feed of a fanned-out pile to a sheet separating device
IPC: B65H1/22
Filed: 1934-06-04
Abstract: 428,255. Feeding sheets. SPIESS, G., 78, Zschochersche Strasse, Leipsic, Germany. June 4, 1934, No. 16633. Convention date, June 3, 1933. [Class 100 (i)] In a sheet-feeding device of the kind in which sheets are separated from a fanned-out pile 16 by means of a rotating suction roller 21, and the pile is advanced by a band 19 driven by means under control of the advanced position of the pile, the pile-advancing means comprises a feeler 33 which is moved by the pile to close a nozzle 39 in a suction tube 37 connected to a cylinder in which works a spring-controlled piston 45 adapted to arrest the pile-advancing means in a manner such as is described in Specification 371,615. The band 19 is driven by gearing from a ratchet 63 operated by a pawl 9 on a spring-controlled arm 8 carried by a lever 5 which is oscillated on a shaft 6 by means of a crank and pitman 4. A cam disc 50 normally moves with the arm 5, and a recess in this disc engages a roller 10 on the arm 8 and permits engage ment of the pawl 9 with the ratchet 53. When the feeler 33 is acted on by the front edge of the pile and the nozzle 39 is closed, the piston 45 operates a spring catch 47 and the cam disc 50 is arrested thus causing the pawl 9 to be disengaged from its ratchet. A washer 40 is fitted to the nozzle 39 to ensure a tight closing. The feeler spring 33 is automatically adjusted in position in accordance with the position of the suction roller 21 which is mounted in a spring-controlled lever 24 adjustable by a screw 27. The arm 24 is connected by a link and lever to parallel links which support the nozzle conduit 37.
Patent GB-565768-A (GB)
Title: Improvements in hoods for camera lenses
IPC: G03B17/12
Filed: 1943-10-12
Abstract: 565,768. Photographic lens hoods. PECKHAM, C. G. Oct. 12, 1943, No. 16743. [Class 98 (i)] A lens hood for a photographic camera consists of a box tapering in the forward direction and open at the front, the rear wall of the box being formed with a central aperture to receive the front part of the lens mount. The side walls may be either conical or pyramidal. The internal surfaces of the hood may be corrugated. As shown, the hood comprises two parts, a flat annular rear part 10 by which the hood is secured to the lens mount and a conical or pyramidal front part 12 the internally threaded base of which screws on to the screwthreaded periphery of the part 10, a shoulder 14 in the interior of part 12 locating the parts correctly. The opening in the front of part 12 is about the same as the central bore in part 10. The part 10 is formed with a flange 16 which is a friction fit over the front portion 18 of the lens mount. Alternatively, the flange 16 may be screw-threaded either internally or externally to engage a corresponding screw-thread on the lens mount, or the hood may be secured to the lens mount by a clip. The front surface of part 10 has an annular projection 20 providing a rebate for the reception of filter 22, held in place by pivoted catches 24, or alternatively the filter may be held in place by a separate rebated annulus. the edge of which is gripped between the shoulder 14 and the front surface of the part 10. The front opening may be circular, square, or rectangular. The hood may bo made of light metal alloy or of synthetic resin.
Patent GB-540818-A (GB)
Title: Improvements in driving mechanism for lathes and other machine tools
IPC: B23Q5/18
Filed: 1940-11-21
Abstract: 540,818. Lathes &c. TRIGGS, W. W. (Warner & Swasey Co.). Nov. 21, 1940, No. 16747. [Class 83 (iii)] The cross-slide carriage 21, cross-slide 22, and turret slide 19 of a lathe, or the lathe spindle or other moving part of a lathe or other machine are driven by change speed gearing from the main drive shaft 24, and the drive of the parts is controlled by levers 81, 82, or 130, which when in the full line positions shown on the drawings permit clutches between the variable driving-gears and the driven parts to be in de-clutched positions, but when moved to the dotted line positions driving takes place. The gear selecting or preselecting device can be set when the levers 81, 82 are in the position shown in Fig. 2, and this device comprises spools 94, formed with series of long and short projections, which are splined to a shaft 92 which can be set to one of eight indexible positions by a knob 101 associated with indicating devices to facilitate setting. The knob 101 actuates the shaft 92 by means of bevel gears, shaft 97, and spiral gears 95, 96. As the lever 81 is moved to throw in the clutch for actuating the carriage 21, or the lever 82 is moved to actuate the slide 22, a plate 117 is rocked and the spools 94 are moved towards each other by means of levers 108, 111 connected by a link 110 which is operated by a pawl 116 on the plate 117 upon a block 114 on the link. The projections on the spools 94 control the position of levers 86, 90 provided with tips 88, 91 which the projections engage, and the levers actuate sliding keys to determine which pair of gears is active between the shaft 24 and the worm wheel which is geared to the clutches operated by the levers 81, 82. Before the clutch is finally thrown in a screw 125 on the plate 117 acts upon an arm 113 on lever 111 and reverses the movements of the spools 94 which are moved outwards to the position shown in Fig. 2. The levers 81, 82 are held in operative positions by spring-pressed pins 83 engaging in recesses 84, and are released therefrom by hand or automatically. The movement of the turret slide 19 may be effected by mechanism controlled by similar gear-changing devices operated by a control lever 130.
Patent GB-792625-A (GB)
Title: Improvements in electronic switching systems
IPC: H04Q3/52
Filed: 1955-06-10
Abstract: 792,625. Electronic counting - apparatus. STROMBERG-CARLSON CO. June 10, 1955 [March 4, 1955], No. 16759/55. Class 106 (1). [Also in Groups XXXIX and XL (c)] A ring counter, Fig. 22, comprises ten pointcontact transistors 2210 ... 2230, reception of negative pulses on a common emitter lead URD serving to step conduction from one transistor to the next. Load resistor R2205 is so chosen that the potential drop threover due to conduction of one of the transistors inhibits conduction of the others. Supposing transistor 2210 is conducting, then a negative 'pulse applied to lead URD cuts this transistor off and maintains the others cut off. The charge on condenser C2202 obtained during the conduction of 2210 is retained after the end of the pulse so that at this time the base of transistor 2220 is negative and this transistor conducts in preference to the others. A digit register is described, Fig. 37, not shown, operating on similar lines, zeroizing being effected by pulsing the base of the first transistor. These circuits are used in an automatic telephone exchange (see Group XXXIX).
Patent GB-549435-A (GB)
Title: Improvements in or relating to folding shoes for use in conjunction with tape applying mechanisms
IPC: B65B49/02
Filed: 1941-12-30
Abstract: 549,435. Affixing tapes by adhesive. BAGPAK, Inc. Dec. 30., 1941, No. 16783. Convention date, Feb. 28, 1941. [Class 73] [Also in Group XVII] Relates to mechanism for closing filled bags in which the collapsed mouth of a bag is secured by stitching, for example, and the closure thus formed is sealed by applying a folded strip of adhesive tape. The tape 5 is supplied from a reel and is coated on one side with adhesive, and the coated tape is folded to an inverted U-shape by passing it through a folding- shoe 14 provided with inturned edges 15 that form flanges which guide and support the edges of the tape. According to the invention the inturned edges 15 are formed with a number of slots 20 through which any adhesive that may become disengaged from the tape, can escape and thus be prevented from accumulating in the flanges and causing the tape to bind or break.
Patent GB-277141-A (GB)
Title: Improvements in vibration dampers for use with drums and the like
IPC: G10D13/00
Filed: 1926-07-05
Abstract: 277,141. Robinson, J. L. July 5, 1926. Drums; cymbals.-To produce a staccato note from a drum or cymbal, a vibration damper is operatively connected to the beater so that the beater and damper act alternately. In Fig. 1. the pressure of the foot on the treadle a actuates the beater b in any usual way, and at the same time depresses the arm of a bell-crank lever h, h<1> pivotally and adjustably attached to a bar j. The bar j, which carries the damper k, is guided in the standard f and is withdrawn against the action of the spring l. Or the damper may be connected to a bell-crank on the beater spindle. In another construction, the damper is carried on a blade spring secured to the hoop by a separate clamp, the blade spring being connected to the pedal by a chain or by a rigid connection. In a further modification the damper may be camoperated. The head of the beater may have one surface p of lambswool and the other, p', of felt.
Patent GB-678090-A (GB)
Title: Improvements in or relating to reservoir pens
IPC: B43K7/02
Filed: 1949-06-24
Abstract: 678,090. Reservoir pens. GRESSER, M. July 12, 1950 [June 24, 1949], No. 16815/49. Class 146 (iii). In a ball-point reservoir pen the point portion 2, which is screwed into the open end of a hollow barrel to form a forward continuation thereof, comprises the refill unit and includes a large diameter ink reservoir 6, a ball-point unit fitted in a small bore at the front end, and a plug 7a, having a fine air hole 9 therein, fitted in the rear end. An extension tube 7b is also fitted in the plug 7a. Air enters the barrel through a fine hole therein. The diameter of the reservoir 6 may be 6 mm, that of the tube 7b about 3 mm, and that of the hole 9 about 1.5 mm. The reservoir is wholly outside the barrel.
Patent GB-638518-A (GB)
Title: Improvements in or relating to charging racks for secondary batteries
Inventor: PAYNE JOHN ERNEST
IPC: H02J7/00
Filed: 1948-06-14
Abstract: 638,518. Batteries. ALKALINE BATTERIES, Ltd. June 14, 1948, No. 16867/47. [Class 53] An accumulator chargmg stand is provided with spring-pressed plungers m for leading the current to the accumulator terminals. The stems of the plungers are guided in holes in the flanges of channel members n. The members n and accumulator supports q are carried by a frame a from which they are separated by insulators d. The accumulators are retained securely on the supports by hinged members c carrying plates e which are pressed against the accumulators by screws f. Electrolyte overflowing from the accumulators is collected in a trough o having an outlet p.
Patent GB-579587-A (GB)
Title: Improvements in motor-cycle and like saddles
IPC: B62J1/14
Filed: 1944-09-05
Abstract: 579,587. Saddles for motor-cycles &c. ATTWELL, E. L. (Attwell, K. L.). Sept. 5, 1944, No. 16957. [Classes 136 (i) and 136 (iii)] An underframe for a saddle 12 and pillion seat 17 comprises a saddle member 10 pivoted at its front end 30 to the vehicle frame and articulated at its rear end 13 to a pillion member 11 supported on springs 24, the arrangement being such that the underframe may flex about the articulation (Fig. 4) or may be stiffened to pivot as a single lever about its forward end 30 (Fig. 3). To stiffen the underframe, arms 14 extend rearwardly from the saddle member 10 and are detachably fixed to the pillion member 11 by means of set-screws 15. When the pillion is in use the underframe is in the rigid condition and its up and down movement, due to the resilience of the springs 24, is maintained in a vertical plane by horizontal slides 27 carried by the member 11 and moving in guides 28. When the pillion is not in use, the under- ,frame is allowed to flex and the slides 27 abut against the stops 29 about which the member 11 now pivots. In a modified form, the setscrews 15 are replaced by spring-urged plungers.
Patent GB-1347388-A (GB)
Title: Frame filter presses
IPC: B01D25/176
Filed: 1971-05-26
Abstract: 1347388 Frame filter press HANSENS GUMMI- & PACKUNGSWERKE KG PAUL UND JOHN HANSEN 26 May 1971 [27 May 1970] 17091/71 Heading B1D A frame filter press comprising alternating filter plates 1 and filter frames 2 has an inlet passage for material to be filtered passing through the frames and plates. Each section 5 of the inlet passage defined by a frame is in the form of a channel opening inwardly over the whole thickness of the frame to communicate with a filter cake chamber 2a formed within the frame and lying between adjacent filter plates. The breadth of each channel measured at a line passing through the longitudinal axis of the corresponding sections 4 of the inlet passage passing through the plates is at least equal to the diameter of the sections 4 passing through the plates. The filter cloth 3 is secured by a screwed boss 6 defining the inlet passage plate, section 4.
Patent GB-180228-A (GB)
Title: Improvements in cardboard boxes
IPC: B65D5/02
Filed: 1921-06-22
Abstract: 180,228. Ward, W. W. June 22, 1921. Folding boxes.-In a cardboard box which is constructed from a single blank, having the front, back, sides, and a securing-tongue m in line with each other, and having the lid and lid flap attached to one side of the back c, and the bottom attached to the other side of the back, the bottom d is provided with a front tuck e of about the same depth as the front g, so that the lid flap a may be fitted between the front tuck and the front of the box. The front tuck may be provided with a turn-over margin n which enables the lid flap to be more easily inserted.
Patent GB-1534776-A (GB)
Title: Runner bricks
IPC: B22D35/04
Filed: 1977-04-26
Abstract: 1534776 Mould runner bricks BRITISH STEEL CORP 26 April 1977 [27 April 1976] 17094/76 Heading B3F [Also in Division F4] A refractory runner brick 1 has a metal reinforcing band 4 bound around the periphery of the brick.